Effective cutting of a quantum spin chain by bond impurities (Articolo in rivista)

Type
Label
  • Effective cutting of a quantum spin chain by bond impurities (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevA.88.052336 (literal)
Alternative label
  • T.J.G. Apollaro (1,); F. Plastina (1); L. Banchi (3,4); A. Cuccoli (5,6); R. Vaia (6,7); P. Verrucchi (5,6,7); M. Paternostro (2,8) (2013)
    Effective cutting of a quantum spin chain by bond impurities
    in Physical review. A
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • T.J.G. Apollaro (1,); F. Plastina (1); L. Banchi (3,4); A. Cuccoli (5,6); R. Vaia (6,7); P. Verrucchi (5,6,7); M. Paternostro (2,8) (literal)
Pagina inizio
  • 052336-1 (literal)
Pagina fine
  • 052336-7 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pra.aps.org/abstract/PRA/v88/i5/e052336 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 88 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 7 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 5 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Google Scholar (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) Dipartimento di Fisica & INFN-Gruppo collegato di Cosenza, Università della Calabria, Via P. Bucci, 87036 Arcavacata di Rende (CS), Italy (2) Centre for Theoretical Atomic, Molecular, and Optical Physics, School of Mathematics and Physics, Queen's University Belfast, BT7 1NN, United Kingdom (3) Department of Physics and Astronomy, University College London, Gower St., London WC1E 6BT, United Kingdom (4) ISI Foundation, Via Alassio 11/c, I-10126 Torino (TO), Italy (5) Dipartimento di Fisica, Università di Firenze, Via G. Sansone 1, I-50019 Sesto Fiorentino (FI), Italy (6) INFN Sezione di Firenze, via G. Sansone 1, I-50019 Sesto Fiorentino (FI), Italy (7) Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, via Madonna del Piano 10, I-50019 Sesto Fiorentino (FI), Italy (8) Institut für Theoretische Physik, Albert-Einstein-Allee 11, Universität Ulm, D-89069 Ulm, Germany (literal)
Titolo
  • Effective cutting of a quantum spin chain by bond impurities (literal)
Abstract
  • Spin chains are promising media for short-haul quantum communication. Their usefulness is manifested in all those situations where stationary information carriers are involved. In the majority of the communication schemes relying on quantum spin chains, the latter are assumed to be finite in length, with well-addressable end-chain spins. In this paper we propose that such a configuration could actually be achieved by a mechanism that is able to effectively cut a spin ring through the insertion of bond defects.We then show how suitable physical quantities can be identified as figures of merit for the effectiveness of the cut. We find that, even for modest strengths of the bond defect, a ring is effectively cut at the defect site. In turn, this has important effects on the amount of correlations shared by the spins across the resulting chain, which we study by means of a scattering-based mechanism of a clear physical interpretation. (literal)
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